For Customer Service call (703) 335-7950.

The Prince William County Service Authority is the premier institution in the Washington Metropolitan Area for purveying safe and reliable drinking water and environmentally sound water reclamation. We are an important reason that people choose to locate homes and businesses in Prince William County. The Service Authority has emerged as a leader in the industry by incorporating the use of best management practices. Our strategies have aligned the efforts of the entire organization to deliver the highest quality product at the best value to our customers.